Chelsea Manning 'faces solitary' over Caitlyn Jenner magazine

Chelsea Manning , formerly known as Bradley Manning, could be placed in solitary confinement indefinitely for allegedly violating prison rules (US Army/AP)Chelsea Manning was formerly known as Bradley Manning and convicted of espionage and other offences in 2013 (AP)

National security leaker Chelsea Manning may be placed in solitary confinement indefinitely for allegedly violating prison rules by having a copy of Vanity Fair with Caitlyn Jenner on the cover.

Other prison charges against her include having an expired tube of toothpaste, Manning's lawyer said.

The former intelligence analyst, formerly known as Bradley Manning, was convicted in 2013 of espionage and other offences for sending more than 700,000 classified documents while working in Iraq.

She is serving a 35-year sentence at the military prison at Fort Leavenworth, for leaking reams of war logs, diplomatic cables and battlefield video to the anti-secrecy website WikiLeaks in 2010.

Her lawyer, Nancy Hollander, said an August 18 hearing is set at the Fort Leavenworth prison for the transgender US Army private. The hearing before a three-person panel is closed, although Manning has asked that it be public.

"This is like prison disciplinary infractions in a civilian prison and there will be a hearing, but frankly it looks to me like harassment," Ms Hollander said.

The prison charges include possession of prohibited property in the form of books and magazines while under administrative segregation; medicine misuse over the toothpaste; disorderly conduct for sweeping food onto the floor; and disrespect.

All relate to alleged conduct on July 2 and 9. The maximum penalty Manning could face is indefinite solitary confinement.